Dog Sudoku Level 131 Hint
Find a bone with only two or three available neighboring cells, then test those cells against the row count, column count, and no-touch rule.
Dog Sudoku Level 131 Strategy
Hard Level 131 uses a 8x8 board with 9 bones. Use the row and column dog counts first, then resolve bones with limited neighboring cells.
Dog Sudoku Level 131 Solution
Solution dog cells: R2C1, R2C8, R3C6, R4C2, R4C4, R5C8, R7C3, R7C8, R8C6.